#pragma once
#include<iostream>
#include<fstream>
#include<cstdio>
#include<string>
#include<ctime>
#include<cstdarg>
#include<sys/types.h>
#include<unistd.h>
#include<pthread.h>
#include"LockGuard.hpp"

bool gIsSave = false;
const std::string logname = "log.txt";

enum level
{
    DEBUG = 0,
    INFO,
    WARNING,
    ERROR,
    FATAL
};

void SaveFile(const std::string &filename,const std::string &message)
{
    std::ofstream out(filename,std::ios::app);
    if(!out.is_open())
    {
        return;
    }
    out<<message;
    out.close();
}
std::string LevelTostring(int level)
{
    switch (level)
    {
    case DEBUG:
        return "DEBUG";
    case INFO:
        return "INFO";
    case WARNING:
        return "WARNING";
    case ERROR:
        return "ERROR";
    case FATAL:
        return "FATAL";
    default:
        return "Unknown";
    }
}
std::string GetTimestring()
{
    time_t curr_time = time(nullptr);
    struct tm*format_time = localtime(&curr_time);
    if(format_time == nullptr)
    {
        return "None";
    }
    char time_buffer[1024];
    snprintf(time_buffer,sizeof(time_buffer),"%d-%d-%d %d:%d:%d",
            format_time->tm_year +1900,
            format_time->tm_mon+1,
            format_time->tm_mday,
            format_time->tm_hour,
            format_time->tm_min,
            format_time->tm_sec);
            return time_buffer;
}

pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;

//日志内容时间行数文件名
void LogMessage(std::string filename,int line,bool issave,int level,const char *format,...)
{
    std::string levestr = LevelTostring(level);
    std::string timestr = GetTimestring();
    pid_t selfid = getpid();

    char buffer[1024];
    va_list arg;
    va_start(arg,format);
    vsnprintf(buffer,sizeof(buffer),format,arg);
    va_end(arg);

    std::string message = "["+timestr+"]"+"["+levestr+"]"+"["+std::to_string(selfid)+"]"+
                            "["+filename+"]"+"["+std::to_string(line)+"]"+buffer;
    LockGuard lockguard(&lock);
    if(!issave)
    {
        std::cout<<message;   
    }
    else
    {
        SaveFile(logname,message);
    }
}

#define LOG(level,format,...)                                              \
    do                                                                     \
    {                                                                      \
        LogMessage(__FILE__,__LINE__,gIsSave,level,format,##__VA_ARGS__);  \
    }while(0)

#define EnableFile()       \
    do                     \
    {                      \
         gIsSave = true;   \
    }while(0)
#define EnadleSereen()     \
    do                     \
    {                      \
        gIsSave = false;   \
    }while(0)